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Goodwill (Tables)
 12 Months Ended
Dec. 31, 2020
Goodwill And Intangible Assets Disclosure [Abstract]  
Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill by segment were as follows:

 

 

 

(Stated in millions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reservoir

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Characterization

 

 

Drilling

 

 

Production

 

 

Cameron

 

 

Total

 

Balance, January 1, 2019

$

4,703

 

 

$

10,111

 

 

$

4,678

 

 

$

5,439

 

 

$

24,931

 

Impairment (see Note 3)

 

(97

)

 

 

(3,025

)

 

 

(705

)

 

 

(5,001

)

 

 

(8,828

)

Impact of changes in exchange rates and other

 

(46

)

 

 

6

 

 

 

(24

)

 

 

3

 

 

 

(61

)

Balance, December 31, 2019

 

4,560

 

 

 

7,092

 

 

 

3,949

 

 

 

441

 

 

 

16,042

 

Impairment (see Note 3)

 

-

 

 

 

(1,659

)

 

 

(1,228

)

 

 

(183

)

 

 

(3,070

)

Impact of changes in exchange rates and other

 

-

 

 

 

10

 

 

 

(17

)

 

 

3

 

 

 

(4

)

Balance, September 30, 2020

$

4,560

 

 

$

5,443

 

 

$

2,704

 

 

$

261

 

 

$

12,968

 

In connection with the change in reportable segments discussed in Note 16 – Segment Information, Schlumberger reallocated goodwill that existed as of September 30, 2020 to the new reporting units on a relative fair value basis as follows:

 

 

(Stated in millions)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Digital &

 

 

Reservoir

 

 

Well

 

 

Production

 

 

 

 

 

 

Integration

 

 

Performance

 

 

Construction

 

 

Systems

 

 

Total

 

Balance, October 1, 2020

$

2,041

 

 

$

3,806

 

 

$

6,267

 

 

$

854

 

 

$

12,968

 

Impact of changes in exchange rates and other

 

6

 

 

 

(4

)

 

 

11

 

 

 

(1

)

 

 

12

 

Balance, December 31, 2020

$

2,047

 

 

$

3,802

 

 

$

6,278

 

 

$

853

 

 

$

12,980